hellomfcview.cpp

这个是我们学校用的VC++教案

// HelloMFCView.cpp : implementation of the CHelloMFCView class
//

#include "stdafx.h"
#include "HelloMFC.h"

#include "HelloMFCDoc.h"
#include "HelloMFCView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CHelloMFCView

IMPLEMENT_DYNCREATE(CHelloMFCView, CView)

BEGIN_MESSAGE_MAP(CHelloMFCView, CView)
	//{{AFX_MSG_MAP(CHelloMFCView)
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHelloMFCView construction/destruction

CHelloMFCView::CHelloMFCView()
{
	// TODO: add construction code here

}

CHelloMFCView::~CHelloMFCView()
{
}

BOOL CHelloMFCView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CHelloMFCView drawing

void CHelloMFCView::OnDraw(CDC* pDC)
{
	CHelloMFCDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CHelloMFCView printing

BOOL CHelloMFCView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CHelloMFCView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CHelloMFCView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CHelloMFCView diagnostics

#ifdef _DEBUG
void CHelloMFCView::AssertValid() const
{
	CView::AssertValid();
}

void CHelloMFCView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CHelloMFCDoc* CHelloMFCView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CHelloMFCDoc)));
	return (CHelloMFCDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CHelloMFCView message handlers

void CHelloMFCView::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	// TODO: Add your message handler code here
	CRect rect;
	GetClientRect(rect);
	dc.SetTextAlign(TA_BOTTOM|TA_CENTER);
	::LineDDA ( 0, 0, rect.right-50, rect.bottom, (LINEDDAPROC) ShowText, 
						(LPARAM)(LPVOID)&dc);  // 触发ShowText()函数
	// Do not call CView::OnPaint() for painting messages
}
VOID CALLBACK CHelloMFCView::ShowText(int x, int y, LPARAM lpdc)
{
	char szText[]="Hello MFC !";
	((CDC*)lpdc)->TextOut(x, y, szText, sizeof(szText)-1);
	::Sleep(1);   // 延迟1毫秒
}